The U.S. Postal Service's new postmark process could lead to late fees and penalties when mailing time-sensitive documents.

The U.S. Postal Service (USPS) implemented new procedures for dating mail on Dec. 24, postmarking letters and packages with ...

A technical tweak and rising shipping costs are quietly reshaping how Americans must plan mailings as 2026 approaches.

If you're mailing any time-sensitive documents, you may want to mail it earlier than usual under the agency's new postmark rules.

For decades, a USPS postmark has served as official evidence that mail was sent on time. In elections, many state laws treat ...

What is new at the post office in 2026? Here's what to know about Postal Service changes in postmark process, postage stamps ...

The USPS updated its language about postmarks, possibly causing changes to when mail is accepted and marked ahead of deadlines. Here's what to know.

A four-ounce package sent via USPS Ground Advantage will rise 21% from $4.20 to $5.09 starting January 18, 2026, part of ...

On Wednesday of last week, the U.S. Postal Service made changes to when mail is postmarked that could impact your ...